为展示后浇带施工过程质量安全管理措施，防范随意变更或取消后浇带、后浇带模板支撑体系搭设不规范、后浇带擅自提前封闭等行为，推动全市项目贯彻落实《关于加强后浇带施工质量管理的通知》文件要求，6月26日，厦门市质安站在厦门市建安集团有限公司承建的岭兜安置房项目C08地块组织后浇带施工专项观摩活动。
后浇带施工做法
01
专项方案编制和审核
编制后浇带专项施工方案，明确钢筋及传力梁安装、防水节点及混凝土施工工艺、后浇带封闭时间与条件、模板支撑体系搭设方案、质量验收标准等，经审批后实施。施工前组织方案交底、技术交底。
02
按设计图纸留设
后浇带是为适应环境温度变化、混凝土收缩、结构不均匀沉降等因素影响，在结构中预留的具有一定宽度且经过一定时间后再浇筑的混凝土带，是避免施工期收缩裂缝的有效措施，必须按照规范及设计文件要求留设。
03
止水带及细部构造
对转角、“T”型搭接、“十”字搭接等节点部位的止水钢板，提前根据设计图纸进行预加工，有效降低后浇带渗漏隐患。
04
模板支架搭设和拆除
后浇带处模板支撑与其两侧梁、板结构的模板支撑分开独立设置，且在混凝土强度达到设计强度方可报批拆除。不得单独使用素混凝土构造柱支撑。
05
限制堆载和安全防护
后浇带两侧设挡水坎、铺设钢板刷警示漆，沿后浇带支撑架外侧纵向立杆拉设警戒带和禁止标识防止误拆、撞击，后浇带两侧梁板跨内不得作为材料堆放、加工场所。
06
行车洞口预留
为防止后浇带支撑拆除后回顶的情况，提前在后浇带支撑搭设阶段留设行车洞口，洞口选择在地下室运输便利且位于楼板受力较小区域的位置，采用工字钢转换层作为洞口部位模板基础。车辆需跨越后浇带的要采用垫钢板、防撞墩或护角条等防止撞击倾覆、碾压破坏措施。
07
封闭前处置流程及验收
后浇带封闭前，参建各方联合组织隐蔽前条件验收，主要有判定沉降稳定、混凝土配合比、接缝处混凝土凿毛、钢筋调直除锈、垃圾清理、模板支架验收等。
08
混凝土浇筑及养护
填充后浇带，可采用微膨胀混凝土、强度等级比原结构强度提高一级，并保持至少14d的湿润养护。
据悉，这是全市首次聚焦后浇带施工开展的单项实体精细化观摩，从后浇带的专项方案编制和审核、按设计图纸留设、止水带细部构造、模板支架搭设和拆除、限制堆载和安全防护、行车洞口预留、封闭前工序及验收、混凝土浇筑养护等环节出发，精准解决后浇带施工过程普遍存在的质量安全难点，对进一步提升后浇带施工质量、减少渗漏隐患有重要指导意义。
岭兜安置房项目-C08地块总建筑面积74237.46㎡，地下2层，地上24~33层，建设单位厦门思明城建工程建设有限公司，代建单位厦门兆旭建设发展有限公司，施工单位厦门市建安集团有限公司，监理单位厦门基业衡信咨询有限公司。
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蒙肤庞760建筑图集03zg003 38页39页膨胀后浇带做法 -
裘朱爬18094382794 ______ 38-39页的不是膨胀后浇带. 膨胀后浇带:膨胀加强带取代后浇带,即在原水平结构普遍使用微膨胀混凝土的基础上,在结构应力和变形最大的地方设置膨胀加强带,内掺高掺量UEA膨胀剂,二者同时浇注,形成连续的整体结构.加强带区域的混凝土和区域外的混凝土膨胀后共同补偿本层结构的收缩.膨胀加强带的位置与原 后浇带的位置相同,一般宽度为2m,加强带的混凝土强度比两侧混凝土高一个强度等级.由于两侧和中间钢筋的纵向限制作用,膨胀混凝土强度不仅不会下降,相反还有所提高.加强带混凝土浇完后,需延长养护时间,一般应大于14d.沉降后浇带不能做成膨胀后浇带.
蒙肤庞760框架,顶子的后浇带,在什么图纸可以看到 -
裘朱爬18094382794 ______ 后浇带的位置和宽度在结施各层楼面板配筋平面图上画出的,后浇带的做法大样,结施总说明有交代,或平面图上画有索引,指定11G101-1第98页大样.
蒙肤庞760后浇带的注意事项 -
裘朱爬18094382794 ______ 1 、后浇带的设置应遵循“抗防兼备,以防为主”的设计原则.因为普通混凝土存在开裂问题,设置后浇缝的目的就是将大部分的约束应力释放,然后用膨胀混凝土填缝以抗衡残余应力.2 、结构设计中由于考虑沉降原因而设计的后浇带,在施...
蒙肤庞760框架结构混凝土后浇带施工方法. -
裘朱爬18094382794 ______ 一般图纸中都有后浇带施工的要求(特别是地下室后浇带或与水接触部位的后浇带,图纸中应明确施工方法或者参见什么图集),但一般情况如果是上部结构,后浇带施工方法为:清理基层垃圾及基层处理,湿润混凝土,浇筑提高一等级的膨胀型混凝土.
蒙肤庞76011G - 101 - 1 - 98后浇带 -
裘朱爬18094382794 ______ 基础后浇带在11G101-3上,照第93、94页构造大样,楼板、墙的后浇带在11G101-1第98页. 先照施工图要求宽留一条不浇混凝土,达到图纸规定间隔的期限后,再补浇好混凝土.楼主要问具体问题,不要笼统问怎么做?比如,我问,房子怎么修?你好回答吗?
蒙肤庞760后浇带在哪张图纸
裘朱爬18094382794 ______ 恩恩结施
蒙肤庞760广联达软件如何布置基础后浇带 -
裘朱爬18094382794 ______ 1、首先打开广联达BIM钢筋算量软件,找到需要布置孔洞边放射筋的建筑模型. 2、选择需要布置孔边放射筋的现浇板,右键单击,选择“分割”. 3、将现浇板沿圆心纵向或横向分割成两块板. 4、接着来到“受力筋”板块,找到定义好的钢筋“孔洞边放射筋”. 5、接着就可以选择分割后的半边板.根据提示下一步选择圆心,这个时候要按住Shift,然后点击圆心,x向板外偏移1单位. 6、最后根据图纸尺寸输入半径.用鼠标点击布置钢筋的板,就可以看到板筋的图标已经出现在板上.
蒙肤庞760后浇带的做法规范 -
裘朱爬18094382794 ______ 不知道你是哪里的朋友.如果是江苏省的,可以参看苏J01-2003图集第24页,一般的设计也会按照这个图集,如果不是江苏的朋友,可以参看04G101-4图集,上面关于板后浇带的做法有明确规定.但是都需要加筋
蒙肤庞760广联达图形算量GCL2008有梁式满堂基础的后浇带怎么画?
裘朱爬18094382794 ______ 新建后浇带——根据图纸位置布置——套定额、 清单即可.
蒙肤庞760请问土建工程后浇带资料怎么做呀? -
裘朱爬18094382794 ______ 一般报个砼浇筑就行了,钢筋之前已经绑好了.模板也是之前装好的.脚力要是说少了,你就按正常的检验批把钢筋、模板加上吧
